Manufacturer details checked
Grand Seiko
Grand Seiko sbgd228j
- Exterior
- 18k rose gold
- Case back
- See-through & Screw case back
- Glass Material
- Dual-curved sapphire crystal
- Glass Coating
- Anti-reflective coating on inner surface
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Specifications checked against the linked manufacturer page. The image source and display method are identified with the illustration.
Manufacturer specifications checked for this reference
These specifications were checked against the manufacturer page for this exact reference.
- Exterior
- 18k rose gold
- Case back
- See-through & Screw case back
- Glass Material
- Dual-curved sapphire crystal
- Glass Coating
- Anti-reflective coating on inner surface
- Case size
- Diameter 44.5mm Lug-to-lug 52.0mm Thickness 14.4mm
- Band width
- 23mm
- Band Material
- Crocodile leather
- Clasp type
- Folding clasp with push button release
- Caliber no.
- 9R01 Instructions
- Movement Type
- Spring Drive Manual winding
- Power reserve
- Approx. 192 hours(8 days)
- Accuracy
- ±10 seconds per month (±0.5 second per day)
- Water resistance
- 10 bar
- Magnetic resistance
- 4,800 A/m
- Other details / Features
- Case with diamond(s) LIMITED EDITION on the case back Serial number engraved on the case back Mother of pearl dial with diamond(s) and garnet(s) Crown with diamond With an extra KYOTO Leather strap 18k rose gold clasp 267 diamonds (5.98 carat) and 26 garnets (0.87 carat) 56 jewels Power reserve indicator Time difference adjustment function
Checked 2026-09-27 · Regional scope: manufacturer Europe · Manufacturer specifications; individual watches may vary.
Original manufacturer wording is retained for source data without a reviewed translation.
Recorded discovery details.
- Brand
- Grand Seiko
- Reference token
- sbgd228j
- Collection candidate
- Not established
- Family candidate
- Not established
- Product type
- Watch candidate
Official discovery source
The exact token was retained from a stored official manufacturer URL or feed. The source supports discovery, but does not by itself verify every model detail.
Open official manufacturer page ↗Source record: grand-seiko-official-batch-20260924 · Manufacturer details checked; editorial publication pending.